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Tri-Lab Operating System Stack (TOSS) 4 Security Technical Implementation Guide

Rules, Groups, and Values defined within the XCCDF Benchmark

  • SRG-OS-000480-GPOS-00230

    <GroupDescription></GroupDescription>
    Group
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  • TOSS must prohibit the use of cached authentications after one day.

    &lt;VulnDiscussion&gt;If cached authentication information is out of date, the validity of the authentication information may be questionable. TOS...
    Rule Medium Severity
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  • SRG-OS-000423-GPOS-00187

    <GroupDescription></GroupDescription>
    Group
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  • TOSS must display the Standard Mandatory DoD Notice and Consent Banner or equivalent US Government Agency Notice and Consent Banner before granting local or remote access to the system.

    &lt;VulnDiscussion&gt;Display of a standardized and approved use notification before granting access to the operating system ensures privacy and se...
    Rule Medium Severity
    Show

  • SRG-OS-000066-GPOS-00034

    <GroupDescription></GroupDescription>
    Group
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  • TOSS, for PKI-based authentication, must validate certificates by constructing a certification path (which includes status information) to an accepted trust anchor.

    &lt;VulnDiscussion&gt;Without path validation, an informed trust decision by the relying party cannot be made when presented with any certificate n...
    Rule Medium Severity
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  • SRG-OS-000067-GPOS-00035

    <GroupDescription></GroupDescription>
    Group
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  • TOSS, for PKI-based authentication, must enforce authorized access to the corresponding private key.

    &lt;VulnDiscussion&gt;If the private key is discovered, an attacker can use the key to authenticate as an authorized user and gain access to the ne...
    Rule Medium Severity
    Show

  • SRG-OS-000080-GPOS-00048

    <GroupDescription></GroupDescription>
    Group
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  • TOSS must require authentication upon booting into emergency or rescue modes.

    &lt;VulnDiscussion&gt;To mitigate the risk of unauthorized access to sensitive information by entities that have been issued certificates by DoD-ap...
    Rule Medium Severity
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  • SRG-OS-000109-GPOS-00056

    <GroupDescription></GroupDescription>
    Group
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  • There must be no ".shosts" files on The TOSS operating system.

    &lt;VulnDiscussion&gt;The ."shosts" files are used to configure host-based authentication for individual users or the system via SSH. Host-based au...
    Rule Medium Severity
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  • The TOSS pam_unix.so module must be configured in the password-auth file to use a FIPS 140-2-approved cryptographic hashing algorithm for system authentication.

    &lt;VulnDiscussion&gt;Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be r...
    Rule Medium Severity
    Show

  • SRG-OS-000120-GPOS-00061

    <GroupDescription></GroupDescription>
    Group
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  • The TOSS pam_unix.so module must be configured in the system-auth file to use a FIPS 140-2-approved cryptographic hashing algorithm for system authentication.

    &lt;VulnDiscussion&gt;Unapproved mechanisms that are used for authentication to the cryptographic module are not verified and therefore cannot be r...
    Rule Medium Severity
    Show

  • SRG-OS-000125-GPOS-00065

    <GroupDescription></GroupDescription>
    Group
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  • The TOSS operating system must implement DoD-approved encryption in the OpenSSL package.

    &lt;VulnDiscussion&gt;Without cryptographic integrity protections, information can be altered by unauthorized users without detection. Remote acce...
    Rule Medium Severity
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  • SRG-OS-000134-GPOS-00068

    <GroupDescription></GroupDescription>
    Group
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  • TOSS must use a Linux Security Module configured to enforce limits on system services.

    &lt;VulnDiscussion&gt;An isolation boundary provides access control and protects the integrity of the hardware, software, and firmware that perform...
    Rule Medium Severity
    Show

  • SRG-OS-000138-GPOS-00069

    <GroupDescription></GroupDescription>
    Group
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